Broken key extractor
OwnerGeorge Blakeinventor
Life of this patent
Estimating the term…
Abstract
A handle for holding a tool piece comprising: a fore end region and an aft end region; an edge at the fore end region of the handle defining an opening for inserting a tool piece; and a clamp connected to the fore end region of the handle comprising a pair of selectively movable, substantially diametrically opposed arms. A handle for a broken key extractor, the handle capable of holding a selectively removable 0.050-inch broken key extractor blade such that a tensile force of at least about 50 pounds is required to remove the blade from the handle using a SCOTT J Model Tensile Tester.
Claims23
1-5. (canceled)
A broken key extractor comprising:
- (a) a handle having a fore end region and an aft end region, wherein the proximate end of the fore end region of the handle is tapered to permit the user to view a keyhole having a broken key therein and further including an interior wall at least partially defining a blade storage compartment in the handle, the storage compartment extending into the aft end region of the handle;
- (b) a blade-holding aperture having an open end and a base end, the aperture defined by at least a portion of the fore end region of the handle;
- (c) a pair of diametrically opposed setscrews;
- (d) a channel sized to receive the setscrews, the channel having two open ends defined by the handle, wherein the channel substantially intersects the blade-holding aperture, whereby opposing the pair of set screws in the channel creates a clamp;
- and
- (e) an extractor blade for gripping broken keys, the blade sized to be received by the open end of the blade-holding aperture and sized to rest on the base end of the blade-holding aperture, wherein the blade includes a substantially cylindrical and solid cross-sectional base for providing pulling strength which is held in place by the pair of opposing set screws.
(canceled)
A broken key extractor comprising:
- (a) a handle having a fore end region and an aft end region, wherein the proximate end of the fore end region of the handle is tapered to permit the user to view a keyhole having a broken key therein and further including an interior wall at least partially defining a blade storage compartment in the handle, the storage compartment extending into the aft end region of the handle;
- (b) a blade-holding aperture having an open end and a base end, the aperture defined by at least a portion of the fore end region of the handle;
- (c) a pair of diametrically opposed rods;
- (d) an interior wall defining a channel in the fore end region of the handle, the channel for receiving the pair of diametrically opposed rods, the channel substantially intersecting the blade-holding aperture and having two open ends defined by the handle, whereby diametrically opposing the pair rods in the channel creates a clamp for holding an extractor blade;
- and
- (e) an extractor blade for gripping broken keys, the blade sized to be received by the open end of the blade-holding aperture and rest on the base end of the blade-holding aperture, wherein the blade includes a substantially cylindrical and solid cross-sectional base for providing pulling strength which is held in place by the pair of diametrically opposed rods.
(canceled)
15-19. (canceled)
20-23. (canceled)
24-30. (canceled)
A broken key extractor comprising:
- (a) a handle having a fore end region, wherein the handle fore end region at least partially defines a blade-holding aperture, wherein the proximate end of the fore end region of the handle is tapered to permit the user to view a keyhole having a broken key therein and further including an interior wall at least partially defining a blade storage compartment in the handle;
- (b) a pair of substantially diametrically opposed rods;
- (c) an interior wall defining a channel for receiving the pair of substantially diametrically opposed rods;
- and
- (d) an extractor blade for gripping broken keys, the blade includes a substantially cylindrical and solid cross-sectional base for providing pulling strength sized to be received by the blade-holding aperture.
37-41. (canceled)
A broken key extractor comprising a handle, wherein the proximate end of the fore end region of the handle is tapered to permit the user to view a keyhole having a broken key therein and a selectively removable 0.050-inch extractor blade including a substantially cylindrical and solid cross-sectional base for providing pulling strength wherein a tensile force of at least about 50 pounds is required to remove the blade from the handle using a SCOTT J Model Tensile Tester.
44-45. (canceled)
Dependencies are inferred from the claim text.